The Small Island Developing States (SIDS) together bear next to no responsibility for climate change, but their geographical, socioeconomic and climate profiles make them particularly vulnerable to its impacts. Spread across three regions, the 40 SIDS nations have 388 projects approvals totalling USD 2.1 billion from multilateral climate funds between 2003 and 2020.1 While approved funding for the SIDS has increased markedly in the past few years, it fulfils only a small part of actual needs. Since 2015, the Green Climate Fund (GCF) has been the largest contributor to SIDS. In 2020, USD 239 million was approved for projects in SIDS. Some 75% of this is programmed by the GCF, which also accounts for the 11 largest projects in SIDS. Further scaling up of both climate adaptation and mitigation finance to the SIDS is vital – both to address the vulnerability of SIDS inhabitants by making agriculture, biodiversity and infrastructure sectors more resilient to climate impacts, and to shift the energy mixes of SIDS away from fossil fuels.